Portable electric flash-light.



O. J. SAGEBREGHT. PORTABLE ELECTRIC FLASH LIGHT.

APPLICATION FILED AUG. 22, 1914.

Patented Dec. 29, 1914.

UNITED STATES PATENT FFTE CHARLES J. SAGEIBRECHT, OF BROOKLYN, NEW YORK,ASSIGNOR TO INTERSTATE ELECTRIC NOVELTY 00., OF NEW YORK, N. 21, A COFOEATION ronrannn ELECTRIC rLAsE-Lrenr.

Specification of Letters Patent.

. Patented Dec. 22,1214.

Application filed August 22, 1914. Serial No. 857,987.

To all whom it may concern:

Be it known that I, CHARLES J. SAGE- BRECH'I, a citizen of the UnitedStates, and a resident of Brooklyn, in the county of Kings and State ofNew York, have invented certain new and useful Improvements in PortableElectric Flash-Lights, of whichthe following is a specification.

The invention pertains more particularly to improvements in the class ofelectric lamps designed to be held in the hand and sometimes used asflash lights and at other times for affording a permanent light for ashort period, and one object of the inven- TY tion is to provide a noveland eflicient coning of the switch control mechanism with said upper capon the casing These flash lights are frequently carried'by workmen in abox of tools, and it has frequently hap-j pened that some metal tool hasby lying against the electric lamp completed the circuit through thebattery, with the result that the lamp was lighted and the batteryunnecessarily consumed.

in accordance with my invention I obvia the objection just referred'toand provide a construction in which a metal tool lying against the sideof the casing will be unable to complete the circuit.

illustrate my invention as embodied in what is known as a minerselectric lamp or flash light, without intending to confine the inventionin all its parts to a lamp or flash light of any particular denominationor intended for any particular use.

The invention will be fully understood from the detailed descriptionhereinafter presented, reference being had to the accompanying drawings,in which:

Figure 1 is a side elevation of a portable electric lamp or flash lightembodying my invention; Fig. 2 is a central vertical section, on alarger scale, through the same on the dotted line 22 of Fig. 1; Fig. 3is a de tached perspective view of a sleeve carried on the lower end ofthe reflector and having a non-conducting outer body and a threadedconducting inner body adapted to receive the threaded stem of the lampbulb, and Fig. t is a detached perspective view of a metal cupintroduced into the upper'end of the non-conducting main casing of theflash light and affording a support for the lower portion of thereflector and its co-acting parts carrying the lamp bulb.

In the drawings, designates a paper or fiber casing for the lamp, 11 thebattery therein, 12 the lens, 13 the electric lamp bulb, 1a thereflector, 15 the usual connection of the battery with the lamp, 16 anupper cap screwed upon a metal sleeve 17 which is fastened to the upperend of the casing and 18 a lower metal cap which is screwed upon a metalsleeve 19 fastened upon the lower.

end of the casing 10.

The casing 10 is equipped with two conductors or strips of metal 20, 21whichare to be placed in electrical connection with each other at theiradjoining ends when the lamp is to be lighted, as hereinafter explained.The .casing 10 is preferably formed from a spirally wound sheet offiber, and the conductors 20, 21 in one continuous piece are woundwithin said sheet or placed in between the convolutions thereof duringthe formation of the tube or casing 10, and thereafter a recess 22 isformed in the outer wall of the casing 10 and the metal strip intendedto form the conductors 20, 21 is severed thereat and a section of saidstrip removed therefrom, and thereupon the adjacent end portions of thesections of the strip constituting the conductors 20, 21 are bentoutwardly upon the exterior surface of the casing 10, as shown in Fig.2, so that the end of the conductor 21 may receive the spring switch 23and the adjacent end of the conductor adapted to receive at the propertime the free end of said switch. The recess 22 is covered over by anexterior metal casing 2e and upon this casing is placed a slide 25carrying a metal projection 26 in engagement with the switch 23. Whenthe slide 25 is in its inoperative position shown in. Fig. 2, the freeend of the switch 23 is out of engagement with the conductor 20, butwhen the slide 25 is moved upwardly on the casing 24, its projection 26forces the switch 23 into engagement with the conductor 20 and completesthe circuit through the lamp.

DUI

-'said shell 29 'and then fbent upwardlylower end of the shell 29 isopen,

The sleeve 17 upon the upper end of-the' casing 10 by an eyelet orhollow rivet 2L The cap 16 is flanged inwardly and downwardly at itsupper open end, as at 28,

forming an annular seat for a metal shell 29, and said flange 28 ,at itsinner lower edges is formed with aseries of tongues 30 which areinserted through holes formed in against the inner'surface. of thesame,these ton-guesserving to secure the shell against the cap '17 and'so,connecting the shell and cap that the two pieces may be handled as one.The shell-29 hasan .upper. threaded annular portion ing ring 32, andthence saidslfellh'as its walls converge downwardly and inwardlydefining approximately a cone-shape. The

at snugly receives the exterior surface of a sleeve of insulatingmaterial 33 .secured within a neck 34 depending from the lower end ofthe reflector ll. The sleeve 33 will preferably be formed of fiber andsecured to the neck 34. by indentations 35, onsaid neck driven into thematerial of the sleeve 33. The'refiector 14 has a flanged upper edgewhich rests upon the-upper threaded portion 31 of the shell 29, and saidreflector extends downwardly on converging lines within the shell 29 andholds within aforesaid neck 34 the sleeve 33 which receives within it athreaded metal bushing or sleeve 36 having an outwardly flanged loweredge 37 and receiving the threaded stem of the lamp bulb 13, as shown inFig. 2. The reflector 14, sleeve 33 of insulating material,

and threaded metallic sleeve 36 are firmly united together so as to behandled as one a piece.

- a metallic cup 39 having an open center 40 in its bottom and verticalsides 41 closely fittin within the upper end of the casing 10. The sideof the cap 39 has the upper end of the conductor 20 pinched over uponit,as at 42, and the bottom of saidcup 39 is in contact with the lowerflanged edge 37.0f

the sleeve 36. The sleeve of insulating material 33 insulates the lamp,the sleeve 36 and the cup 39 from the sleeve 16, casing 29, andreflector 14, and hence it will be ;seen

that the circuit for the current, when the slide 25 is in its upperposition, is through 39, sleeve 36 and the conductor 20, cup threaded*ret of the lamp to the battery, the sleeve 0 casing 29, reflector 1aand 9 u a sleeve 32 being insulated from OlliZSldB, of sand circuit. i

One of the mam purposes of themventlon 31 to rece ve the lens-hold- Iand thereniaaeee one. piece; .the reflector 14:, sleeve and sleeve 36may be applied within the casing 10 as one piece and convenientlyreceive the lamp'bulb, and thereupon'th'e sleeve 32 may be applied tothe upper portion of the casing 29 for securing the lens 12 in position.

The cap 7 10 is of; usual'construction, and Within sai 18 attljielowerend of the casing cap is a conducting sprin .43 of ordina character i'nengagement with the lowerend of'the' battery 11. The cap 18, sleeve 19and spring {l3 are in electrical connection with one another, and thesleeve 19 is in electrical connection with the conductor 21;

My invention resides in the specialfeatures provided at the upper end ofthe main casing 10 and particularly in the revision of the cup or thelike 39and re ector 14 havingon itslower end the neck 34, insuflatingsleeve'33, and metal sleeve 36 to receive the lamp and enter intoelectrical engagement with the cup 39, which is in electrical'connectionwith the conductor 20.

What I claim as my invention and desire to secure by Letters-Tatent, is:

1. A portable electric light of the class described comprising anexterior casing containing a battery, circuit terminal conductorsextending along said casing and t lower one of which is in electricalconnection with the battery, circuit closing meahs for connecting saidconductors, a cup within the upper end of said casing having an opencenter and in electrical connection with the upper one of saidconductors, a reflector having a neck containing a sleeve ofnonconducting material mounted on a threaded sleeve of conductingmaterial seated on said cup, a lamp whose stem is screwed within saidthreaded sleeve and extends through the opening of said cup to thebattery, a

lens, and means for securing the reflector tors extending along saidcasing and the lower one of which is in electrical connectioh with thebattery, circuit closing means for connecting said conductors, a cupwithin being insuthe upper end of said casing having an open center andin electrical connection with the upper one of said conductors, areflector having a neck containing a. sleeve of non-conducting materialmounted on a threaded sleeve of conducting material seated on said cup,a lamp Whose stem is screwed Within said threaded sleeve andextendsthrough the opening of said cup to the battery, a lens, and means forsecurin the reflector and lens on said casing, sai reflectorand'therewith said securing means being insulated from .the lamp andbattery by said nonconducting sleeve, and said securing meanscomprislng. a threaded sleeve on the said casing, a threaded cap on saidsleeve having an open center and flanged Ontario and Dominion of Canadathis 19th 25 day of August, A. D. 1914.

CHARLES J. SAGEBRECHT. Witnesses: I

D. S. Tovm, W. G. GRAHAM;

said sleeve of non: 20

